AT24MAC602-XHM-B Equivalent & Substitute Parts

Part Overview

The AT24MAC602-XHM-B is a 2Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface operation at 1 MHz clock frequency with 550 ns access time. This non-volatile memory device is packaged in 8-TSSOP surface mount configuration and operates across a wide supply voltage range of 1.7V to 5.5V with temperature range of -40°C to 85°C. The part is currently in active product status with ROHS3 compliance. Equivalent and substitute parts are identified based on matching memory capacity, interface protocol, electrical specifications, and package compatibility to ensure direct functional replacement in circuit designs.

Key Parameters

Parameter	AT24MAC602-XHM-B
Memory Size	2Kbit
Memory Organization	256 x 8
Memory Interface	I2C
Clock Frequency	1 MHz
Access Time	550 ns
Write Cycle Time	5 ms
Voltage Supply Range	1.7V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package / Case	8-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the AT24MAC602-XHM-B are categorized based on strict parameter matching across memory capacity, interface type, electrical characteristics, and physical packaging. All identified substitutes maintain the 2Kbit capacity with 256 x 8 organization and I2C interface protocol. The critical parameters determining substitution eligibility are: memory size (2Kbit), memory organization (256 x 8), interface (I2C), package type (8-TSSOP), mounting method (Surface Mount), and operating temperature range (-40°C to 85°C). Clock frequency variations between 400 kHz and 1 MHz are acceptable as they represent operational capability differences rather than incompatibilities. Supply voltage ranges must encompass or match the 1.7V to 5.5V specification. Access time and write cycle time variations are acceptable provided they do not exceed the original specifications, ensuring backward compatibility in timing-critical applications.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Voltage Supply	Operating Temp	Package	Product Status
AT24MAC602-XHM-B	Microchip Technology	2Kbit	1 MHz	550 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Active
AT24C02C-XHM-B	Microchip Technology	2Kbit	1 MHz	550 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Active
AT24CS02-XHM-B	Microchip Technology	2Kbit	1 MHz	550 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Active
AT24MAC402-XHM-B	Microchip Technology	2Kbit	1 MHz	550 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Active
BR24G02FVT-3GE2	Rohm Semiconductor	2Kbit	400 kHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Active
BR24L02FVJ-WE2	Rohm Semiconductor	2Kbit	400 kHz	Not specified	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Not For New Designs
BR24L02FVT-WE2	Rohm Semiconductor	2Kbit	400 kHz	Not specified	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Active
BR24T02FVJ-WE2	Rohm Semiconductor	2Kbit	400 kHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Not For New Designs
BR24T02FVJ-WGE2	Rohm Semiconductor	2Kbit	400 kHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Obsolete
M24C02-DRDW3TP/K	STMicroelectronics	2Kbit	1 MHz	450 ns	1.8V ~ 5.5V	-40°C ~ 125°C	8-TSSOP	Active

Engineering Selection Recommendations

For new designs, prioritize parts with Active product status: AT24C02C-XHM-B, AT24CS02-XHM-B, AT24MAC402-XHM-B, BR24G02FVT-3GE2, BR24L02FVT-WE2, and M24C02-DRDW3TP/K. The Microchip Technology AT24C02C-XHM-B offers identical electrical and thermal specifications to the AT24MAC602-XHM-B with verified programmability status and superior moisture sensitivity rating (MSL 1 vs MSL 3). The STMicroelectronics M24C02-DRDW3TP/K provides automotive-grade qualification (AEC-Q100) with extended operating temperature range to 125°C and faster access time (450 ns), suitable for automotive and industrial applications requiring higher temperature operation. Rohm Semiconductor BR24L02FVT-WE2 and BR24G02FVT-3GE2 operate at reduced clock frequency (400 kHz) but maintain full compatibility with I2C protocol and 2Kbit capacity. Parts marked "Not For New Designs" (BR24L02FVJ-WE2, BR24T02FVJ-WE2) and "Obsolete" (BR24T02FVJ-WGE2) should be avoided in new circuit development. All recommended substitutes maintain ROHS3 compliance and REACH unaffected status consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can I use BR24L02FVT-WE2 as a direct replacement for AT24MAC602-XHM-B?

A: Yes, the BR24L02FVT-WE2 is electrically compatible. Both devices share 2Kbit capacity, 256 x 8 organization, I2C interface, 8-TSSOP package, and identical operating temperature range. The primary difference is clock frequency: BR24L02FVT-WE2 operates at 400 kHz versus 1 MHz for the AT24MAC602-XHM-B. This represents reduced operational speed but maintains full backward compatibility. The BR24L02FVT-WE2 has superior moisture sensitivity (MSL 1 vs MSL 3) and is in active product status.

Q: What is the difference between AT24MAC602-XHM-B and AT24C02C-XHM-B?

A: Both parts are manufactured by Microchip Technology with identical electrical specifications: 2Kbit capacity, 1 MHz clock frequency, 550 ns access time, 1.7V to 5.5V supply range, and -40°C to 85°C operating temperature. The AT24C02C-XHM-B has verified programmability status and lower moisture sensitivity level (MSL 1 vs MSL 3), making it preferable for moisture-sensitive applications. Both are in active product status.

Q: Is M24C02-DRDW3TP/K suitable for my application requiring -40°C to 85°C operation?

A: Yes, the M24C02-DRDW3TP/K exceeds the temperature requirement with operating range of -40°C to 125°C. It maintains 2Kbit capacity, I2C interface, and 8-TSSOP package compatibility. Additional benefits include automotive-grade qualification (AEC-Q100) and faster access time (450 ns vs 550 ns). Supply voltage range is 1.8V to 5.5V, which covers the original 1.7V minimum by 0.1V.

Q: Why should I avoid BR24T02FVJ-WGE2?

A: The BR24T02FVJ-WGE2 is marked as Obsolete product status, indicating discontinued manufacturing and potential supply chain unavailability. For new designs and long-term production, select parts with Active status to ensure sustained component availability and supply chain stability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all identified substitute parts maintain ROHS3 compliance and REACH unaffected status consistent with the AT24MAC602-XHM-B, ensuring environmental and regulatory compliance across all alternatives.

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